Ahead, our experts share all the ways you can use cardboard in the garden, such as preventing weeds, enriching your soil, and more.

Sheet mulching with cardboard is the secret to fewer weeds and fuss-free plant-bed prep. Don’t ditch those cardboard boxes; instead, put them to use in your garden, smothering out weeds ...

Instead of using cardboard to control weeds under gravel, Benrick recommends landscape fabric. "It will still need maintenance over time, but will greatly help with keeping the gravel separated ...

Don't Toss That Box—9 Genius Ways to Use Cardboard in Your Garden Reduce waste and save money by repurposing old cardboard in your garden.

While cardboard can enhance your garden, there are some things to keep in mind. Don't use too much: Avoid using excessively thick layers of cardboard around established plants, Steil says.